01-03-2021
Physics

contestada

How much time does it take a dropped object to fall 180 m on Earth?
18 s
36 S
10 s
6s

Respuesta :

really226 really226

01-03-2021

Answer:

6s

Explanation:

Assume it is dropped from rest and the gravitational acceleration is 10

By the equation of motion under constant acceleration:

[tex]s=ut+\frac{1}{2} at^2[/tex]

180 = (0)t+10(t^2)/2

t = 6 or -6 (rejected)

t = 6 s

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